/*****************************************************************************
 *   gpio.h:  Header file for NXP LPC13xx Family Microprocessors
 *
 *   Copyright(C) 2008, NXP Semiconductor
 *   All rights reserved.
 *
 *   History
 *   2008.09.01  ver 1.00    Preliminary version, first Release
 *   2009.12.09  ver 1.05    Mod to use mask registers for GPIO writes + inlining (.h)
 *
******************************************************************************/
#ifndef __GPIO_H 
#define __GPIO_H

#define PORT0		0
#define PORT1		1
#define PORT2		2
#define PORT3		3

void GPIO_IRQHandler(void);
void GPIOInit( void );
void GPIOSetInterrupt( uint32_t portNum, uint32_t bitPosi, uint32_t sense,
		uint32_t single, uint32_t event );
void GPIOIntEnable( uint32_t portNum, uint32_t bitPosi );
void GPIOIntDisable( uint32_t portNum, uint32_t bitPosi );
uint32_t GPIOIntStatus( uint32_t portNum, uint32_t bitPosi );
void GPIOIntClear( uint32_t portNum, uint32_t bitPosi );

static LPC_GPIO_TypeDef (* const LPC_GPIO[4]) = { LPC_GPIO0, LPC_GPIO1, LPC_GPIO2, LPC_GPIO3 };

/*****************************************************************************
** Function name:		GPIOSetValue
**
** Descriptions:		Set/clear a bitvalue in a specific bit position
**						in GPIO portX(X is the port number.)
**
** parameters:			port num, bit position, bit value
** Returned value:		None
**
*****************************************************************************/
static __INLINE void GPIOSetValue( uint32_t portNum, uint32_t bitPosi, uint32_t bitVal )
{
	LPC_GPIO[portNum]->MASKED_ACCESS[(1<<bitPosi)] = (bitVal<<bitPosi);
}

/*****************************************************************************
** Function name:		GPIOSetDir
**
** Descriptions:		Set the direction in GPIO port
**
** parameters:			port num, bit position, direction (1 out, 0 input)
** Returned value:		None
**
*****************************************************************************/
static __INLINE void GPIOSetDir( uint32_t portNum, uint32_t bitPosi, uint32_t dir )
{
	if(dir)
		LPC_GPIO[portNum]->DIR |= 1<<bitPosi;
	else
		LPC_GPIO[portNum]->DIR &= ~(1<<bitPosi);
}

#endif /* end __GPIO_H */
/*****************************************************************************
**                            End Of File
******************************************************************************/